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https://fromrebel.com/products/tranzitions-3-in-1-harness-booster-car-seat-proof-ad3e3c 14867145556335 Tranzitions 3-in-1 Harness Booster Car Seat - Proof 89.99 https:files/3c3ec494-45b2-4333-bfcf-aff1ea6da26c_ac5bf62d-bb46-4ca0-ba0f-ec88350b288f.webp https:files/3c3ec494-45b2-4333-bfcf-aff1ea6da26c_ac5bf62d-bb46-4ca0-ba0f-ec88350b288f.webp USD InStock Graco 635314471279 Baby 639935873391 Baby & Kids 641800995183 Baby Best Sellers 630363128175 Best Sellers 291289268373 Big Babies 6-18 months 306878283925 Car Seat + Boosters 291287662741 Car Seats 636240265583 Daily Deal Drops 641725563247 Deals on Graco 306999918741 Gifts By Category 291285696661 Gifts Under $100 302408237205 Gifts Under $150 302408269973 Gifts Under $350 291283992725 Gifts Under $500 312721539221 Graco 630363259247 Graco x REBEL Shop 291289301141 Newborn 0-3 months 291282223253 Over $10 635358577007 Over $75 Warranty Products 291288187029 Ships Nationally 291285368981 Shop All 633256247663 Shop All 306996609173 Shop By Age 291286089877 Under $100 640502497647 Under $100 640502661487 Under $250 640501547375 Up to 50% OFF 641453392239 Up to 60% OFF 640500433263 Up to 70% OFF 291286712469 What's New 635885420911 What's New Across Baby and Home 636239970671 What's New in Baby Gear & Kids

The Graco® Tranzitions™ 3-in-1 Harness Booster is designed to grow with your child and go with you, wherever your journeys take you—from car to carpool and beyond. This lightweight car seat transitions seamlessly from harness booster (22-65 lb) to highback booster (40-100 lb*) to backless booster (40-100 lb) and features the Simply Safe Adjust™ Harness System, which adjusts your harness and headrest to 8 height positions, with no rethreading. It features two removable cup holders to keep your child happy, and a machine washable seat pad, body insert, and harness covers. *To continue to meet industry standards, we have increased the weight minimum from 30 to 40 lb

Highlights

  • 3-in-1 harness booster helps protect your child, from toddler to youth

  • Grows with your child from forward-facing harness (26.5-65 lb) to highback booster (40-100 lb*) to backless booster (40-100 lb) *To continue to meet industry standards, we have increased the weight minimum from 30 to 40 lb

  • No-Rethread Simply Safe Adjust Harness System allows the headrest and harness to adjust together in one motion

  • Lightweight, portable seat is ideal for busy, active parents

  • One-hand, 9-position adjustable headrest grows with your child

  • Integrated, rotaing holders help keep your child's drink close

  • Open-loop belt guides help properly position your vehicle’s seat belt

  • Suggested Age: 2-12 Years

149.99 Graco ADDONPOP AutoList_v4 AutoPublish_v1 BABY BOOSTER SEATS CAR SEATS FRESHNESS FY2026.49 GRACO NEW ARRIVALS PERCENT_OFF_RANGE_30_50 PERCENT_OFF_RANGE_50_70 REBELBEST https:files/18dc5c29-b96e-413a-987a-c483e05957d9_1d6f65fc-8fa3-4221-9049-305300b17634.webp https:files/cedfc388-5851-4ba7-92b6-80e00e6c8d58.webp https:files/341a3859-a497-4fb8-86a7-9ed8581c170e_1a392179-08fe-412b-91f8-8ad4f26d15db.webp https:files/79e5b9e9-13f1-4096-a696-90334874411c_282cd947-1531-4e6b-a467-ed9a31cf8a4c.webp https:files/9fd9ed40-2587-4bac-8ef2-ca194661775e_c6a5587a-716e-4e13-9ec6-421e912de3ff.webp https:files/67243f4f-326c-4abf-8436-38549623356a_91bb77d7-b733-4e99-907f-65cc37b583ef.webp 52563067470191 Open Box 89.99 149.99 https: https://fromrebel.com/products/tranzitions-3-in-1-harness-booster-car-seat-proof-ad3e3c?variant=52563067470191 InStock Open Box 52586535846255 Imperfect 73.99 149.99 https: https://fromrebel.com/products/tranzitions-3-in-1-harness-booster-car-seat-proof-ad3e3c?variant=52586535846255 OutOfStock Imperfect